'use client';

import { copy } from '@/shared/i18n';
import { cn } from '@/shared/lib/cn';
import {
  RECOVERY_30S_MODE_LABEL,
  Restart30sAction,
  useRestart30s,
} from '@/features/restart-30s';

interface SpaceTimerHudWidgetProps {
  timeDisplay?: string;
  className?: string;
  hasActiveSession?: boolean;
  sessionPhase?: 'focus' | 'break' | null;
  playbackState?: 'running' | 'paused' | null;
  isControlsDisabled?: boolean;
  isImmersionMode?: boolean;
  canStart?: boolean;
  canPause?: boolean;
  canReset?: boolean;
  onStartClick?: () => void;
  onPauseClick?: () => void;
  onResetClick?: () => void;
}

const HUD_ACTIONS = copy.space.timerHud.actions;

export const SpaceTimerHudWidget = ({
  timeDisplay = '25:00',
  className,
  hasActiveSession = false,
  sessionPhase = 'focus',
  playbackState = 'paused',
  isControlsDisabled = false,
  isImmersionMode = false,
  canStart = true,
  canPause = false,
  canReset = false,
  onStartClick,
  onPauseClick,
  onResetClick,
}: SpaceTimerHudWidgetProps) => {
  const { isBreatheMode, triggerRestart } = useRestart30s();
  const modeLabel = isBreatheMode
    ? RECOVERY_30S_MODE_LABEL
    : !hasActiveSession
      ? copy.space.timerHud.readyMode
    : sessionPhase === 'break'
      ? copy.space.timerHud.breakMode
      : copy.space.timerHud.focusMode;

  return (
    <div
      className={cn(
        'pointer-events-none fixed inset-x-0 z-20 flex justify-center px-4 sm:px-6',
        className,
      )}
      style={{ bottom: 'calc(env(safe-area-inset-bottom, 0px) + 2rem)' }}
    >
      <div className="relative pointer-events-auto">
        <section
          className={cn(
            'relative z-10 flex h-[3.5rem] items-center justify-between gap-6 overflow-hidden rounded-full px-5 transition-colors',
            isImmersionMode
              ? 'border border-white/10 bg-black/20 backdrop-blur-2xl shadow-[0_8px_32px_rgba(0,0,0,0.12)]'
              : 'border border-white/15 bg-black/30 backdrop-blur-2xl shadow-[0_8px_32px_rgba(0,0,0,0.16)]',
          )}
        >
          <div className="flex items-center gap-3">
            <span
              className={cn(
                'w-14 text-right text-[10px] font-bold uppercase tracking-[0.15em] opacity-80',
                sessionPhase === 'break' ? 'text-emerald-400' : 'text-brand-primary'
              )}
            >
              {modeLabel}
            </span>
            <span className="w-[1px] h-4 bg-white/10" />
            <span
              className={cn(
                'w-20 text-[1.4rem] font-medium tracking-tight text-center',
                isImmersionMode ? 'text-white/90' : 'text-white',
              )}
            >
              {timeDisplay}
            </span>
          </div>

          <div className="flex items-center gap-1.5 pl-2 border-l border-white/10">
            {HUD_ACTIONS.map((action) => {
              const isStartAction = action.id === 'start';
              const isPauseAction = action.id === 'pause';
              const isResetAction = action.id === 'reset';
              const isDisabled =
                isControlsDisabled ||
                (isStartAction ? !canStart : isPauseAction ? !canPause : !canReset);
              const isHighlighted =
                (isStartAction && playbackState !== 'running') ||
                (isPauseAction && playbackState === 'running');

              return (
                <button
                  key={action.id}
                  type="button"
                  title={action.label}
                  aria-pressed={isHighlighted}
                  disabled={isDisabled}
                  onClick={() => {
                    if (isStartAction) onStartClick?.();
                    if (isPauseAction) onPauseClick?.();
                    if (isResetAction) onResetClick?.();
                  }}
                  className={cn(
                    'inline-flex h-8 w-8 items-center justify-center rounded-full text-sm transition-all duration-150 ease-out focus-visible:outline-none focus-visible:ring-2 active:scale-95 disabled:cursor-not-allowed disabled:opacity-30',
                    isImmersionMode
                      ? 'text-white/70 hover:bg-white/10 hover:text-white'
                      : 'text-white/80 hover:bg-white/15 hover:text-white',
                    isStartAction && isHighlighted
                      ? 'bg-white/10 text-white shadow-sm'
                      : '',
                    isPauseAction && isHighlighted
                      ? 'bg-white/10 text-white shadow-sm'
                      : '',
                  )}
                >
                  <span aria-hidden>{action.icon}</span>
                  <span className="sr-only">{action.label}</span>
                </button>
              );
            })}
            <Restart30sAction
              onTrigger={triggerRestart}
              className="h-8 w-8 ml-1"
            />
          </div>
        </section>
      </div>
    </div>
  );
};